*{
    padding: 0px;
    margin: 0px;
}
.top{
    width: 1200px;
    height: 161px;
    background-color: white;
    margin: 0px auto;
}
.h1,.h2{
    margin-top: 40px;
    float: left;
}
.h21{
    margin-top: 20px;
    margin-left: 60px;
    font-size: 20px;
    font-weight: 700;
}
.h22{
    margin-left: 60px;
    margin-top: 10px;
    font-size: 10px;
}
/* 按钮及查询框 */
.h3{
    margin-top: 60px;
    float: right;
}
.h31{
    outline: none;
    border: 2px rgb(103, 193, 196) solid;
    height: 40px; 
    border-radius: 30px;
    padding-left: 20px;
}
.h32:hover{
    background-color: rgb(90, 176, 179);
}
.h32{
    font-family: 'icomoon';
    outline: none;
    background-color: rgb(103,193,196);
    height: 40px; width: 60px;
    border: none; border-radius: 25px;
    color: white; font-weight: 700;
}
.topf{
    background-color: rgb(103, 193, 196);
    height: 85px;
}
.topf a{
    text-decoration: none;
    line-height: 73px;
    font-size: 20px;
    color: white;
    float: left;
    font-weight: 700;
}
.topf li{
    height: 75px;
    background-color: rgb(103, 193, 196);
    display: block;
    float: left;
    margin-left: 100px;
}
.topf a:hover{
    border-bottom: aliceblue 3px solid;
}
.topf>.first1{
    margin-left: 180px;
}
.head{
    margin: 0px auto;
    height: 600px;
    /* background-image: url(素材/banner.jpg); */
    position: relative;
}
.head img{
    width: 100%;
    height: 100%;
}
.left,.bigimg{
    position: absolute;
}
.left>a{
    display: block;
    text-decoration: none;
    height: 66.5px; width: 300px;
    line-height: 66.5px; color: white; font-size: 18px; text-align: center;
    background-color: rgba(0, 0, 0, 0.479);
    float:inline-end;
}
.left>a:hover{
    background-color: rgba(0, 0, 0, 0.589);
    color: rgb(136, 218, 250);
}
.right{
    position: fixed; top: 200px; right: 50px;
    overflow: hidden;
    background-color: rgba(255, 255, 255, 0.747);
    width: 300px;
    border-collapse: collapse;
    border-radius: 0px;
    /* 将元素位于整体最上层 */
    z-index: 999;
}
.right>a{
    display: block;
    text-decoration: none;
    height: 66.5px;
    line-height: 66.5px; color: #000; font-size: 18px; text-align: center;
    font-weight: 700;
    border: 1px gray solid;
}
.right>.rightf{
    background-color: rgb(133, 207, 236);
    color: white;
    font-weight: 700; font-size: 25px;
    border: none;
}
.right>a:hover{
    background-color: rgba(255, 255, 255, 0.555);
}
.right>.rightf:hover{
    background-color: rgba(9, 180, 248, 0.452);
}
.middle{
    position: absolute;
    top: 150px;
    left: 450px;
    width: 700px;
}
.head .span1{
    font-size: 60px;
    font-weight: 700;
    color: white;
    letter-spacing: 8px;
}
.head .span2{
    font-weight: 500;
    color: white;
    letter-spacing: 5px;
    margin-left: 250px;
}
.how span{
    font-size: 20px;
    font-weight: 700;
    color: white;
}
.how{
    margin-top: 70px;
    margin-left: 100px;
}
.button input{
    outline: none; border: none;
    width: 140px; height: 50px;
    color: white;
    font-size: 16px;
    font-weight: 700;
    background-color: rgb(9, 194, 169);
    border-radius: 35px;
    margin-left: 60px;
}
.button input:hover{
    background-color: rgba(255, 255, 255, 0);
    width: 140px; height: 50px;
    color: rgb(9, 194, 169);
    border: 3px solid rgb(9, 194, 169);
}
.button{
    margin-top: 70px;
    margin-left: 100px;
}
.body{
    width: 1200px;
    height: 850px;
    margin: 0px auto;
}
.body>div{
    float: left;
    height: 450px; width: 270px;
    border: 1px rgb(240, 240, 240) solid;
    margin-right: 36px;
}
.body>.img{
    width: 1200px;
    height: 300px;
    margin: 0px auto;
    border: none;
}
.body>.img>img{
    margin-top: 50px;
    margin-left: 350px;
}
.i1,
.i2,
.i3,
.i4{
    width: 100%;
}
.d{
    margin-top: 20px;
    text-align: center; 
    font-size: 25px;
    font-weight: 700;
}
.d1{
    text-align: center;
    font-weight: 700;
    color: rgb(9, 194, 169);
}
li{
    margin-left: 60px;
    color: rgb(139, 138, 138);
    font-size: 13px;margin-top: 10px;
}
.go{
    outline: none;
    border: none;
    margin-top: 30px; margin-left: 70px;
    width: 130px; height: 40px;
    color: white;
    font-weight: 700;
    background-color: rgb(9, 194, 169);
    border-radius: 30px;
}
.go:hover {
    background-color: white;
    width: 130px; height: 40px;
    color: rgb(9, 194, 169);
    border: 3px solid rgb(9, 194, 169);
}